Utter_not_sure processing

Hi everyone, I’m new in Rasa and i have a question about utter_not_sure. In stories.md of Rasa demo:

## anything else?
    - utter_anything_else
* enter_data
    - utter_not_sure
    - utter_possibilities

I don’t know when utter_not_sure is called. Please help me! Thank you very much!

Hi there @michaelLampard, I’m not able to find the exact story you’re referring to, can you post a link?

Thank for reply @erohmensing. I mean the case: https://rasa.com/docs/core/fallbacks/ I just read it :slight_smile: